Digital traces of everyday activity, collected and stored at much finer resolution and higher frequency than pre 2000
http://www.datameer.com/wp-content/uploads/2015/11/Telco-Network-Capacity-Planning.pdf http://www-01.ibm.com/software/data/bigdata/use-cases/enhanced360.html https://lindaraftree.com/2015/11/23/big-data-in-development-evaluation/